Ceratolejeunea. FRANZ STEPHANl. SPECIES HEPATICARUM (VOL. V, 1913). 



Ceratolejeunea Spruce 1884 



Plantae mediocres vel parvae, rufo-brunnese rigidulae, in cortice 

 caespitantes, rarius foliicolse. Caulis irregulariter ramosus, ramis 

 longioribus interjectis simplicibus vel pinnulatis, remotis interdum, 

 fasciculatim approximatis, sub flore simpliciter vel dichotome inno- 

 vatus. Folia caulina contigua vel parum imbricata, concava apiceque 

 decurva, in plano ovata, integerrima vel sub apice armata, vulgo 

 asymmetrica, brevi basi inserta, basi antica longe truncata. Cellulx 

 foliorum regulariter hexagonse, basales oblongse ; ocelli basaies majores, 

 parum numerosae, in paucis longitudinaliter seriati. Lobulus ssepe 

 parvus, ovatus vel oblongus, apice quam basis angustiore, oblique 

 truncato, angulo apiculato vel spina hamata armato. Folia utriculifera, 

 in pinnulis basalia, maxime reducta, lobulo quidem giganteo, maxime 

 inflato, ore incurvo subclauso. Amphigastria caulina vulgo majuscula, 

 interdum gigantea, rarius parva, sinuatim inserta vel subtransverse 

 adnata, apice inciso-biloba, subrotunda vel latiora quam longa, in 

 paucis integerrima. Florescentia monoica vel dioica, rarius autoica. 

 Perianthia majuscula, pyriformia vel oblonga, saepe uniformia, semper 

 inflata, quadriplicata, apice quadricornuta, cornibus anticis vulgo 

 longis angustis divergentibus, interdum plus minus reductis, angulatim 

 prominulis, aliis apice inflatis, capitatis constrictis, cornibus posticis 

 similibus, vulgo porrectis vel plus minus late divergentibus. Folia 

 floralia caulinis aequimagna vel minora, vulgo obovato-oblonga, acuta, 

 armata vel integerrima ; lobulu^ valde variabilis, ovatus vel oblongus 

 vel lanceolatus, folio florali brevior, plus minus profunde solutus ; 

 Amphigastrium florale magnum, lobulis saepe breviter coalitum, apice 

 inciso-bifidum, in paucis integerrimum. Androecia sessilia, parva, 

 bracteis paucijugis interdum ex apice vegetativa. 



CSer a tole j eii.iiea 



1. Geratolejeunea auriculata SchflFn. Insula Bougainville. ^ 



2. Ceratolejeunea amazonica St. America tropica. 



3. Ceratolejeunea andicola St. Ecuador. 



391 



